Rumer Willis must have seen Kate Upton's super-hot GQ cover from this week, because she went out in California in a look (we guess you could call it that?) cribbed straight from one of the Sports Illustrated model's sexy bikini shoots.The 23-year-old actress, who's the daughter of Demi Moore and Bruce Willis, took the distressed denim look to the next level while shopping at West Elm in Los Angeles on Tuesday.